Home / 53,915.18-74,403.65-30,948.71

Finding the Fourth Proportional to 53,915.18, 74,403.65 and 30,948.71

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Solution

The fourth proportional to 53,915.18, 74,403.65 and 30,948.71 is: 42,709.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,915.18 : 74,403.65 = 30,948.71 : x
  2. Step 2: Convert to fraction form
    53,915.18/74,403.65 = 30,948.71/x
  3. Step 3: Cross multiply
    53,915.18x = 74,403.65 × 30,948.71
  4. Step 4: Simplify right side
    53,915.18x = 2,302,696,986.79
  5. Step 5: Solve for x
    x = 2,302,696,986.79/53,915.18
  6. Step 6: Final answer
    x = 42,709.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.